Introduction to this guide

This guide is designed to offer a set of resources to assist in
identifying and finding tests on particular subjects as well as
resources for further information on testing in general.

There are two main categories of tests:

1) "Published" tests are those test published commercially by a test
publisher. These are generally only available directly from the
publisher and often come in the form of kits or multiple booklet
packets. They can be costly.

2) "Unpublished" tests are tests that may have
been published in journals or other books but haven't been published by
a commercial test publisher. They are often free if you have the journal or book.